As it spreads west, it grows more virulent.

越往西传播得越严重。

She had a very virulent form of the illness.

她患上了恶疾。

Fortunately, while Ebola is highly virulent, several factors limit its contagiousness.

幸好，虽然埃博拉极度致命，但它传染性被以下因素所限制。

The fungus is so virulent it can wipe out whole colonies of ants.

这种剧毒类足以杀死整个蚂蚁群落。

Dr. King was fatally shot by petty thief and virulent racist James Earl Ray.

他受到致命枪击，凶手是小偷，也是怀有敌意种族主义者詹姆斯 厄尔 雷(James Earl Ray)。

The capsule is considered an important virulence factor since the strains that lack a capsule are less virulent.

荚被认为是重要毒力因子，因为缺少荚株毒力相对较弱。

There is no law of nature that says a virus has to evolve to be less virulent, Barry says.

Barry 说，没有自然法则说病毒一定会越进化致命性越低。

Share indices had fallen amid the news about rapidly spreading virulent strains of COVID-19, but investors soon shrugged off those concerns.

在有关新型冠状病毒病毒株迅速传播消息传出后，股票指数出现下跌，但投资者很快就摆脱了这些担忧。

For example, they're looking into whether less virulent relatives of coronavirus could protect against COVID-19 the way vaccinia protects against smallpox.

例如，他们在研究毒性较低冠状病毒亲属能否像牛痘预防天花那样预防新冠肺炎。

Oh, other than waiting out the exponential growth period of the virulent organisms trooping through my microvilli into my circulatory system-hunky-dory.

除了等着那些致命有机物沿着我绒毛组织 侵入我血液循环系统外就没啥特别了。

We said it came back many times, but never as virulent as those years in the 1300s What might surprise you though?

正如我们刚才所说，它卷土重来了好几次接下来可能要让你为之惊讶了？

Supporters claim the virulent anti-immigrant rhetoric of the National Front's early years has moderated. But there was shock, though, among immigrant communities in Paris.

支持者称国民阵线早年恶毒反移民言论已经有所缓和。不过巴黎移民社区仍然是谈虎色变。

South Korea is one of them and it's giving us a sense of how other elections may look in these strange and virulent times.

韩国就是其中之一，它让我们了解到，在这个奇怪而有“毒”时代，其他选举可能样子。

I think it would be really premature at his time, to now say that the viruses are gonna be much less virulent and not really transmitting very effectively.

我认为现在下结论说艾滋病毒致命性以及传染有效性将大大降低还为时过早。

The virus itself could have been more virulent, and more deadly, and the miserable fact is that just because we've had this coronavirus doesn't mean we can't get another, even worse, pandemic.

这种病毒本身毒性可能会更强，也更致命。一个悲哀事实是，虽然新冠病毒爆发了，但这并不意味着以后不会再爆发其它怕更糟糕流行病。

It is a most extraordinary thing, but I never read a patent medicine advertisement without being impelled to the conclusion that I am suffering from the particular disease there in dealt with in its most virulent form.

说起来非常奇怪，我每看一个非处方药广告都必然会得出这样结论：我得了广告上说这个病，不仅如此，而且症状很严重。